"Some people were going too fast, I will definitely say that. Some people were going too fast," said Kasey Wilichowski, who was injured.

Wilichowski was right in the middle of it all. She was a passenger in a car that was hit from behind, leaving her with a bruised forehead.

"The sound, it was sickening just hearing crunch, crunch, crunch, crunch. Knowing that those were other people too, you just prayed for it to stop, but it wouldn't," Wilichowski said.

Wilichowski called 911 as crashes continued around her, and her car was struck again.

"There are pileups everywhere. We got hit. A couple of other people got hit. Just blocks. They're crashing everywhere. There is a cop behind us," she said to the 911 dispatcher.

"Ma'am can you verify?" the dispatcher asked.

"Oh, God, God, Jesus," Wilichowski said.

"Take a deep breath, OK?" the dispatcher said.

Wilichowski called 911 from her cellphone, meaning the call first went to the call center in Waukesha, but then had to be transferred to Menomonee Falls, where emergency crews were dispatched.

"It does stress the system," said Gregory West of Waukesha County Technical College.

West and his staff at WCTC train emergency dispatchers. He said with multiple major incidents all at once, dispatchers have to react differently.

"They'll dispatch even before the dispatchers have all the information because it's important to get those resources on the road quickly," West said.

Despite the challenging weather and circumstances, dispatchers said the system worked as it should.

The pileup Wilichowski was in happened on Highway 45 near Main Street in Menomonee Falls, but with the number of cars involved and the other events happening at the same time, emergency crews came from all around.

A second pileup, which happened just a few miles up the road in Germantown, was caught on a Department of Transportation camera. It was a sight that Wilichowski said she won't forget.